Improvement in harvester-gearings



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121,881.y Patented Dec.12,1871.

UNITED STATEs PATENT OFFICE.

JOHN P. MANNY, OF ROOKFORD, ILLINOIS.

IMPROVEMENT IN HARVESTER-GEARINGS.

Specification forming part of Letters Patent No. 121,881, dated December12, 1871 antedated November 30, 1871.

To all whom it 'may concern:

Beitknown that I, J OHN RMANNY, of Rockford, in the county of Winnebagoand State of Illinois, have invented certain new and useful Improvementsin Harvesters, of which the following is a specification, taken inconnection with the accompanying drawing, which shows so much only of aharvester as is necessary to illustrate the invention herein claimed,although, in practice, my improvements would be used in connection witha fully organized harvesting-machine.

Figure 1 represents a plan; Fig. 2, a rear elevation; and Fig. 3, a sideelevation.

My invention relates to the gearing of a harvester; its object is tochange the speed from the slow motion used in reaping to a fast one whenmowing, or vice versa 5 and the improvement consists in a novelconstruction of gearing, consisting of a wheel beveled on both faces andsliding between two corresponding pinions operating gear-wheels ofdiiferent sizes, as hereinafter set forth. My invention further consistsin combining a swinging skeleton eccentric-shipper 'and a detent, withthe gearing, as hereinafter set forth.

The main axle A turns freely in the sleeves b b1 of a gear-frame, B,swinging freely round the axle. I usually drive a self-raker by means ofa gear mounted on the axle in the space b2 between the sleeves b b1; butsuch gear is not shown in the drawing, as it constitutes no part of thesubject-matter herein claimed. An internally-geared spur-wheel, O, faston the main axle, drives a spurpinion, c, fast on a shaft, D, slidingendwise, and turning freely in a long box, d, in the gearframe. Agear-wheel, E, beveled on each face, is also mounted on this shaft, andalternately engages with 011e of two bevelpinions f f1. One of thesepinions, f, is mounted on the crank-shaft which runs in a long box, g,on the frame, and drives the cutter in the usual way by a crank andpitman. This gearing produces the ordinary motion used in reaping, andordinarily this motion is suiiciently rapid for mowing. The bevelgears ffl are of equal size. The gear fis mounted on a short shaft carrying aspur-wheel, f2, gearing into a pinion, f3, of similar size, on thecrankshaft, to give a faster motion to it. An eccentric skeletonshipping-frame, H, oscillates around a pivot, h, on the gear-frame,being moved by a handle, h. A cam-yoke on the shipper slides in a grooveon the collar and moves the shaft endwise. A spring-detent, I, takesinto notches on the back of the shipper to lock it in any desiredposition. Three notches, 1 2 3, are shown in this instance with theshipper locked by its upper notch l, in which position the slow-motionis in gear. When the shipper is locked by the second notch the shaft dhas moved inward far enough to clear the gears on either side and thegearing stops. When locked into the lower notch 3 the fast-motion isthrown into gear.

I thus secure a compact, simple, and effective arrangement of devicesfor changing the speed, for throwing the mechanism into or out of gear,and for securing the steady running of the gearing, all the bearingsbeing long and contained in one frame, by preference of metal.

I claim as my invention- 1. The combination ofthe endwise-moving rotating shaft, the wheel mounted on said shaft and beveled on both faces withtwo bevel-gears of uniform size, mounted 011 independent parallel shaftscarrying sp ur-wheels of differing sizes gearing with each other, allthese members being constructed and operating as described to vary thespeed of the cutters.

2.- The combination of the endwise-movin g shaft, the swinging eccentricskeleton shipper, and its spring-detent, all these members beingconstructed, arranged, and operating as described.

In testimony whereof I have hereunto subscribed my name.

JOHN P. MANN Y.

Witnesses:

JOE. I. PEvToN,

WM. D. BALDWIN. (7 4)

